Child account

You can set restrictions when you use Screen Time.

Use parental controls on your child's iPhone, iPad, and iPod touch - Apple Support

You have to clear the history on the child’s phone in Settings>Safari>Clear History and Website Data,

End up with the following solution:

[from parent's phone] Turn off screen time for the child account

[from child's phone] Now 'Clear History and Website Data' is enabled, click to clear history.

[from parent's phone] Turn on screen time for the child account

What can I do when 'Clear History and Website Data' is greyed out with parental control on. As a parent, I have the screen time pass-code. However, no matter how I set web content restriction on the child's phone, Settings>Safari>Clear History and Website Data is always greyed out. I would like to review the history once a while and then clear it after reviewing it.